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Mrs. D-Force+Motion
Forces and Motion
| Question | Answer |
|---|---|
| A force is a ___________ or a _____________. | push or pull |
| The amount of work being done depends on the amount of force you use and ________________. | how far the object moves. |
| The amount of work being done depends on how far the object moves and ________________. | the amount of force you use. |
| If you push on something and it doesn't move scientifically you did not do work because _______________. | the object was not moved across a distance |
| An example of a simple machine is ____________ a (bicycle OR an inclined plane). | inclined plane |
| _____________causes a ball to return to Earth after you throw it. | gravity |
| What causes an object to start moving, speed up, slow down, or change direction? | forces |
| The force that pulls two objects toward one another because of their mass is called _____________ | gravity |
| Gravity pulls you towards the _____________ of Earth. | center |
| The tendency of an object to keep moving in a straight line or to stay at rest is called ______________. | inertia |
| An example of inertia is ___________________. | Wearing a seat belt. |
| The force that slows down or stops moving objects in motion is called ______________. | friction |
| The brakes on a car are pressed and the car slows down. This is an example of _______________. | friction |
| Rubbing your hands together causes _____________. | friction |
| The ability to do work is the scientific meaning of _____________. | energy |
| Stored energy is ______________ energy. (Potential or Kinetic) | potential |
| Energy in motion is ______________ energy. (Potential or Kinetic) | kinetic |
| Running is an example of ______________ energy. (Potential or Kinetic) | kinetic |
| You can increase the amount of potential energy by (increasing OR decreasing) how high up you are? | increasing |
| Which child would have the greater potential energy? a)the child standing on the ground b)the child standing on a chair. | the child standing on a chair |
| Mechanical, chemical and electrical are all forms of _____________. | energy |
| When you ride your bicycle you are using (mechanical OR electrical) energy. | mechanical |
| Energy that comes from chemical changes like burning gasoline to drive a car is an example of __________ energy. | chemical |
| When you plug in your ipod to listen to it you are using ____________ energy. | electrical |
| A ramp is an example of what type of simple machine? | inclined plane |
| A wheelbarrow is an example of what type of simple machine? | wheel and axle |
| A nail is an example of what type of simple machine? | wedge |
| A knife is an example of what type of simple machine? | wedge |
| A screwdriver is an example of what type of simple machine? | lever |
| The simple machine that you would use to pull a flag up a flag pole is a _______________ | pulley |
| A pulley uses a _________ and wheel. | rope |
| A screw is an example of what type of simple machine? | screw |
| A nail is an example of what type of simple machine? | wedge |
| A doorknob is an example of what type of simple machine? | wheel and axle |
| A machine made of two or more simple machines is called a _____________ machine. | compound |
| A bicycle is an example of what type of machine? (compound OR simple) | compound |
| A machine made of many simple machines and compound machines is called a _____________ machine. | complex |
| The engine of a car is an example of a (compound OR complex) machine. | complex |
| Most ____________ machines are run by electricity. | complex |
| Which person is doing more work? a) a person who pulls hard on a wagon but it doesn't move. b) a person who pulls lightly on a wagon and it moves down the driveway. | a person who pulls lightly on a wagon and it moves down the driveway. |
| If the object doesn't move then no __________ has been done. | work |
| A motorcycle is an example of a ______________ machine. | complex |
| A machine makes work _____________. | easier |
| Energy is he ability to do _______. | work |
Created by:
sderinger
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